Saw this on Bitshifter's facebook today. A bunch of people over at Discogs (yes I know) have been engaged in an interesting conversation about whether or not NES cartridges should be included in their database. Spoiler: they decided against it and removed what existed. They get into concepts like recorded music vs sequenced music, representations of previously created sound waves vs representations of instructed sound waves, etc.
Several people make good arguments for and against this decision, so I suggest you read it all before coming to conclusions. Kind of similar to what we've read many people talk about in the past, but on another forum, and affecting a different community and their infrastructure.